Speaking Friday, a spokesman for the Prosecutor’s Office said witnesses to the incident were prepared to testify that the trooper did not activate his emergency lights early in the pursuit.

Proving that the trooper did activate his lights would be essential to obtaining a conviction on the eluding charge.

At 6:20 p.m. that day, a State Patrol trooper was pulled over on state Route 167 when 30 to 40 motorcyclists riding sport bikes passed by. Several of the bikers popped wheelies as they passed, prompting the trooper to notify other law enforcement of the group. A witness would later tell police the motorcyclists — including Reyes — were headed to Hooters in South Park for a “Two Wheel Tuesday” event.

Another trooper stopped on Interstate 405 near the intersection with SR 167 noticed that there were no other cars on the interstate, an unusual state of affairs for a Tuesday evening.

According to charging documents, the trooper then saw that several motorcycles had blocked off the freeway while others were performing stunts. The trooper was trying to contact the motorcyclists when three blew past him, one of whom was traveling at 80 to 90 mph.

As the trooper pursued, the three motorcyclists charged in court documents weaved through traffic as they merged onto Interstate 5, a State Patrol detective told the court. The three then exited onto state Route 599 at about 95 mph.

Inside the curve, Anderson passed the other two motorcyclists, who then drifted in front of the trooper’s cruiser, the detective continued. The trooper braked, causing his car to skip and then roll.

Speaking Friday, Prosecutor’s Office spokesman Dan Donohoe said witnesses had come forward as prosecutors were examining the evidence indicating the trooper failed to activate his emergency lights early in the pursuit.

“It appears that the trooper did not activate the lights on his car on the outset of this incident,” Donohoe said.

The charges were dismissed Friday by King County Superior Court Judge Mary Roberts.